3.26.1 html 901 717 1 true 275 0 false 20 false false R1.htm 75000 - Document - Cover Page Sheet http://www.bhp.com/20260630/taxonomy/role/CoverPage Cover Page Cover 1 false false R2.htm 75010 - Statement - Consolidated Income Statement Sheet http://www.bhp.com/20260630/taxonomy/role/ConsolidatedIncomeStatement Consolidated Income Statement Statements 2 false false R3.htm 75020 - Statement - Consolidated Statement of Comprehensive Income Sheet http://www.bhp.com/20260630/taxonomy/role/ConsolidatedStatementOfComprehensiveIncome Consolidated Statement of Comprehensive Income Statements 3 false false R4.htm 75030 - Statement - Consolidated Balance Sheet Sheet http://www.bhp.com/20260630/taxonomy/role/ConsolidatedBalanceSheet Consolidated Balance Sheet Statements 4 false false R5.htm 75040 - Statement - Consolidated Cash Flow Statement Sheet http://www.bhp.com/20260630/taxonomy/role/ConsolidatedCashFlowStatement Consolidated Cash Flow Statement Statements 5 false false R6.htm 75050 - Statement - Consolidated Statement of Changes in Equity Sheet http://www.bhp.com/20260630/taxonomy/role/ConsolidatedStatementOfChangesInEquity Consolidated Statement of Changes in Equity Statements 6 false false R7.htm 995447 - Disclosure - Insider Trading Policies and Procedures Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc Insider Trading Policies and Procedures Notes 7 false false R8.htm 995457 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure Sheet http://www.bhp.com/20260630/taxonomy/role/DisclosureCybersecurityRiskManagementAndStrategyDisclosure Cybersecurity Risk Management and Strategy Disclosure Notes 8 false false R9.htm 995467 - Disclosure - Segment reporting Sheet http://www.bhp.com/20260630/taxonomy/role/SegmentReporting Segment reporting Notes 9 false false R10.htm 995477 - Disclosure - Revenue Sheet http://www.bhp.com/20260630/taxonomy/role/Revenue Revenue Notes 10 false false R11.htm 995487 - Disclosure - Exceptional items Sheet http://www.bhp.com/20260630/taxonomy/role/ExceptionalItems Exceptional items Notes 11 false false R12.htm 995497 - Disclosure - Expenses and other income Sheet http://www.bhp.com/20260630/taxonomy/role/ExpensesAndOtherIncome Expenses and other income Notes 12 false false R13.htm 995507 - Disclosure - Income tax expense Sheet http://www.bhp.com/20260630/taxonomy/role/IncomeTaxExpense Income tax expense Notes 13 false false R14.htm 995517 - Disclosure - Earnings per share Sheet http://www.bhp.com/20260630/taxonomy/role/EarningsPerShare Earnings per share Notes 14 false false R15.htm 995527 - Disclosure - Trade and other receivables Sheet http://www.bhp.com/20260630/taxonomy/role/TradeAndOtherReceivables Trade and other receivables Notes 15 false false R16.htm 995537 - Disclosure - Trade and other payables Sheet http://www.bhp.com/20260630/taxonomy/role/TradeAndOtherPayables Trade and other payables Notes 16 false false R17.htm 995547 - Disclosure - Inventories Sheet http://www.bhp.com/20260630/taxonomy/role/Inventories Inventories Notes 17 false false R18.htm 995557 - Disclosure - Property, plant and equipment Sheet http://www.bhp.com/20260630/taxonomy/role/PropertyPlantAndEquipment Property, plant and equipment Notes 18 false false R19.htm 995567 - Disclosure - Intangible assets Sheet http://www.bhp.com/20260630/taxonomy/role/IntangibleAssets Intangible assets Notes 19 false false R20.htm 995577 - Disclosure - Impairment of Non-current Assets Sheet http://www.bhp.com/20260630/taxonomy/role/ImpairmentOfNonCurrentAssets Impairment of Non-current Assets Notes 20 false false R21.htm 995587 - Disclosure - Deferred tax balances Sheet http://www.bhp.com/20260630/taxonomy/role/DeferredTaxBalances Deferred tax balances Notes 21 false false R22.htm 995597 - Disclosure - Closure and rehabilitation provisions Sheet http://www.bhp.com/20260630/taxonomy/role/ClosureAndRehabilitationProvisions Closure and rehabilitation provisions Notes 22 false false R23.htm 995607 - Disclosure - Climate change Sheet http://www.bhp.com/20260630/taxonomy/role/ClimateChange Climate change Notes 23 false false R24.htm 995617 - Disclosure - Share capital Sheet http://www.bhp.com/20260630/taxonomy/role/ShareCapital Share capital Notes 24 false false R25.htm 995627 - Disclosure - Other equity Sheet http://www.bhp.com/20260630/taxonomy/role/OtherEquity Other equity Notes 25 false false R26.htm 995637 - Disclosure - Dividends Sheet http://www.bhp.com/20260630/taxonomy/role/Dividends Dividends Notes 26 false false R27.htm 995647 - Disclosure - Provisions for dividends and other liabilities Sheet http://www.bhp.com/20260630/taxonomy/role/DisclosureProvisionsForDividendsAndOtherLiabilities Provisions for dividends and other liabilities Notes 27 false false R28.htm 995657 - Disclosure - Net debt Sheet http://www.bhp.com/20260630/taxonomy/role/NetDebt Net debt Notes 28 false false R29.htm 995667 - Disclosure - Leases Sheet http://www.bhp.com/20260630/taxonomy/role/Leases Leases Notes 29 false false R30.htm 995677 - Disclosure - Net finance costs Sheet http://www.bhp.com/20260630/taxonomy/role/NetFinanceCosts Net finance costs Notes 30 false false R31.htm 995687 - Disclosure - Financial risk management Sheet http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagement Financial risk management Notes 31 false false R32.htm 995697 - Disclosure - Key management personnel Sheet http://www.bhp.com/20260630/taxonomy/role/KeyManagementPersonnel Key management personnel Notes 32 false false R33.htm 995707 - Disclosure - Employee share ownership plans Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeShareOwnershipPlans Employee share ownership plans Notes 33 false false R34.htm 995717 - Disclosure - Employee benefits, restructuring and post-retirement employee benefits provisions Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeBenefitsRestructuringAndPostRetirementEmployeeBenefitsProvisions Employee benefits, restructuring and post-retirement employee benefits provisions Notes 34 false false R35.htm 995727 - Disclosure - Subsidiaries Sheet http://www.bhp.com/20260630/taxonomy/role/Subsidiaries Subsidiaries Notes 35 false false R36.htm 995737 - Disclosure - Investments accounted for using the equity method Sheet http://www.bhp.com/20260630/taxonomy/role/InvestmentsAccountedForUsingTheEquityMethod Investments accounted for using the equity method Notes 36 false false R37.htm 995747 - Disclosure - Interests in joint operations Sheet http://www.bhp.com/20260630/taxonomy/role/InterestsInJointOperations Interests in joint operations Notes 37 false false R38.htm 995757 - Disclosure - Related party transactions Sheet http://www.bhp.com/20260630/taxonomy/role/RelatedPartyTransactions Related party transactions Notes 38 false false R39.htm 995767 - Disclosure - Contingent liabilities Sheet http://www.bhp.com/20260630/taxonomy/role/ContingentLiabilities Contingent liabilities Notes 39 false false R40.htm 995777 - Disclosure - Subsequent events Sheet http://www.bhp.com/20260630/taxonomy/role/SubsequentEvents Subsequent events Notes 40 false false R41.htm 995787 - Disclosure - Auditor's remuneration Sheet http://www.bhp.com/20260630/taxonomy/role/AuditorsRemuneration Auditor's remuneration Notes 41 false false R42.htm 995797 - Disclosure - Not required for US reporting Sheet http://www.bhp.com/20260630/taxonomy/role/NotRequiredForUsReporting Not required for US reporting Notes 42 false false R43.htm 995807 - Disclosure - New and amended accounting standards and interpretations and changes to accounting policies Sheet http://www.bhp.com/20260630/taxonomy/role/NewAndAmendedAccountingStandardsAndInterpretationsAndChangesToAccountingPolicies New and amended accounting standards and interpretations and changes to accounting policies Notes 43 false false R44.htm 995817 - Disclosure - Provisions (Policies) Sheet http://www.bhp.com/20260630/taxonomy/role/ProvisionsPolicies Provisions (Policies) Policies 44 false false R45.htm 995827 - Disclosure - Segment reporting (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/SegmentReportingTables Segment reporting (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/SegmentReporting 45 false false R46.htm 995837 - Disclosure - Revenue (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/RevenueTables Revenue (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/Revenue 46 false false R47.htm 995847 - Disclosure - Exceptional items (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/ExceptionalItemsTables Exceptional items (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/ExceptionalItems 47 false false R48.htm 995857 - Disclosure - Expenses and other income (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/ExpensesAndOtherIncomeTables Expenses and other income (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/ExpensesAndOtherIncome 48 false false R49.htm 995867 - Disclosure - Income tax expense (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/IncomeTaxExpenseTables Income tax expense (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/IncomeTaxExpense 49 false false R50.htm 995877 - Disclosure - Earnings per share (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/EarningsPerShareTables Earnings per share (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/EarningsPerShare 50 false false R51.htm 995887 - Disclosure - Trade and other receivables (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/TradeAndOtherReceivablesTables Trade and other receivables (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/TradeAndOtherReceivables 51 false false R52.htm 995897 - Disclosure - Trade and other payables (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/TradeAndOtherPayablesTables Trade and other payables (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/TradeAndOtherPayables 52 false false R53.htm 995907 - Disclosure - Inventories (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/InventoriesTables Inventories (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/Inventories 53 false false R54.htm 995917 - Disclosure - Property, plant and equipment (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/PropertyPlantAndEquipmentTables Property, plant and equipment (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/PropertyPlantAndEquipment 54 false false R55.htm 995927 - Disclosure - Intangible assets (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/IntangibleAssetsTables Intangible assets (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/IntangibleAssets 55 false false R56.htm 995937 - Disclosure - Impairment of non-current assets (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/ImpairmentOfNonCurrentAssetsTables Impairment of non-current assets (Tables) Tables 56 false false R57.htm 995947 - Disclosure - Deferred tax balances (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/DeferredTaxBalancesTables Deferred tax balances (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/DeferredTaxBalances 57 false false R58.htm 995957 - Disclosure - Closure and rehabilitation provisions (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/ClosureAndRehabilitationProvisionsTables Closure and rehabilitation provisions (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/ClosureAndRehabilitationProvisions 58 false false R59.htm 995977 - Disclosure - Share capital (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/ShareCapitalTables Share capital (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/ShareCapital 59 false false R60.htm 995987 - Disclosure - Other equity (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/OtherEquityTables Other equity (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/OtherEquity 60 false false R61.htm 995997 - Disclosure - Dividends (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/DividendsTables Dividends (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/Dividends 61 false false R62.htm 996007 - Disclosure - Provisions for dividends and other liabilities (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/DisclosureProvisionsForDividendsAndOtherLiabilitiesTables Provisions for dividends and other liabilities (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/DisclosureProvisionsForDividendsAndOtherLiabilities 62 false false R63.htm 996017 - Disclosure - Net debt (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/NetDebtTables Net debt (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/NetDebt 63 false false R64.htm 996027 - Disclosure - Leases (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/LeasesTables Leases (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/Leases 64 false false R65.htm 996037 - Disclosure - Net finance costs (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/NetFinanceCostsTables Net finance costs (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/NetFinanceCosts 65 false false R66.htm 996047 - Disclosure - Financial risk management (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagementTables Financial risk management (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagement 66 false false R67.htm 996057 - Disclosure - Key management personnel (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/KeyManagementPersonnelTables Key management personnel (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/KeyManagementPersonnel 67 false false R68.htm 996067 - Disclosure - Employee share ownership plans (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeShareOwnershipPlansTables Employee share ownership plans (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/EmployeeShareOwnershipPlans 68 false false R69.htm 996077 - Disclosure - Employee benefits, restructuring and post-retirement employee benefits provisions (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeBenefitsRestructuringAndPostRetirementEmployeeBenefitsProvisionsTables Employee benefits, restructuring and post-retirement employee benefits provisions (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/EmployeeBenefitsRestructuringAndPostRetirementEmployeeBenefitsProvisions 69 false false R70.htm 996087 - Disclosure - Subsidiaries (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/SubsidiariesTables Subsidiaries (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/Subsidiaries 70 false false R71.htm 996097 - Disclosure - Investments accounted for using the equity method (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/InvestmentsAccountedForUsingTheEquityMethodTables Investments accounted for using the equity method (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/InvestmentsAccountedForUsingTheEquityMethod 71 false false R72.htm 996107 - Disclosure - Interests in joint operations (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/InterestsInJointOperationsTables Interests in joint operations (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/InterestsInJointOperations 72 false false R73.htm 996117 - Disclosure - Related party transactions (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/RelatedPartyTransactionsTables Related party transactions (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/RelatedPartyTransactions 73 false false R74.htm 996127 - Disclosure - Contingent liabilities (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/ContingentLiabilitiesTables Contingent liabilities (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/ContingentLiabilities 74 false false R75.htm 996137 - Disclosure - Auditor's remuneration (Tables) Sheet http://www.bhp.com/20260630/taxonomy/role/AuditorsRemunerationTables Auditor's remuneration (Tables) Tables http://www.bhp.com/20260630/taxonomy/role/AuditorsRemuneration 75 false false R76.htm 996147 - Disclosure - Segment Reporting - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SegmentReportingAdditionalInformationDetail Segment Reporting - Additional Information (Detail) Details 76 false false R77.htm 996157 - Disclosure - Segment Reporting - Summary of Reportable Segments (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SegmentReportingSummaryOfReportableSegmentsDetail Segment Reporting - Summary of Reportable Segments (Detail) Details 77 false false R78.htm 996167 - Disclosure - Segment Reporting - Summary of Reportable Segments (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SegmentReportingSummaryOfReportableSegmentsParentheticalDetail Segment Reporting - Summary of Reportable Segments (Parenthetical) (Detail) Details 78 false false R79.htm 996177 - Disclosure - Segment Reporting - Summary of Geographical Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SegmentReportingSummaryOfGeographicalInformationDetail Segment Reporting - Summary of Geographical Information (Detail) Details 79 false false R80.htm 996187 - Disclosure - Revenue - Summary of Revenue by Segment and Asset (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/RevenueSummaryOfRevenueBySegmentAndAssetDetail Revenue - Summary of Revenue by Segment and Asset (Detail) Details 80 false false R81.htm 996197 - Disclosure - Revenue - Summary of Revenue by Segment and Asset (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/RevenueSummaryOfRevenueBySegmentAndAssetParentheticalDetail Revenue - Summary of Revenue by Segment and Asset (Parenthetical) (Detail) Details 81 false false R82.htm 996207 - Disclosure - Revenue - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/RevenueAdditionalInformationDetail Revenue - Additional Information (Detail) Details 82 false false R83.htm 996217 - Disclosure - Exceptional Items - Summary of Exceptional Items by Category (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ExceptionalItemsSummaryOfExceptionalItemsByCategoryDetail Exceptional Items - Summary of Exceptional Items by Category (Detail) Details 83 false false R84.htm 996227 - Disclosure - Exceptional Items - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ExceptionalItemsAdditionalInformationDetail Exceptional Items - Additional Information (Detail) Details 84 false false R85.htm 996237 - Disclosure - Exceptional Items - Summary of Exceptional Items Related to the Samarco Dam Failure (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ExceptionalItemsSummaryOfExceptionalItemsRelatedToTheSamarcoDamFailureDetail Exceptional Items - Summary of Exceptional Items Related to the Samarco Dam Failure (Detail) Details 85 false false R86.htm 996247 - Disclosure - Exceptional Items - Summary of Gain on Disposal (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ExceptionalItemsSummaryOfGainOnDisposalDetail Exceptional Items - Summary of Gain on Disposal (Detail) Details 86 false false R87.htm 996257 - Disclosure - Exceptional Items - Summary of Gain on Disposal (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ExceptionalItemsSummaryOfGainOnDisposalParentheticalDetail Exceptional Items - Summary of Gain on Disposal (Parenthetical) (Detail) Details 87 false false R88.htm 996267 - Disclosure - Significant Events - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SignificantEventsAdditionalInformationDetail Significant Events - Additional Information (Detail) Details 88 false false R89.htm 996277 - Disclosure - Significant Events - Summary of Financial Impacts of Samarco Dam Failure (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SignificantEventsSummaryOfFinancialImpactsOfSamarcoDamFailureDetail Significant Events - Summary of Financial Impacts of Samarco Dam Failure (Detail) Details 89 false false R90.htm 996287 - Disclosure - Significant Events - Summary of Financial Impacts of Samarco Dam Failure (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SignificantEventsSummaryOfFinancialImpactsOfSamarcoDamFailureParentheticalDetail Significant Events - Summary of Financial Impacts of Samarco Dam Failure (Parenthetical) (Detail) Details 90 false false R91.htm 996297 - Disclosure - Significant Events - Summary of Provision for Samarco Dam Failure (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SignificantEventsSummaryOfProvisionForSamarcoDamFailureDetail Significant Events - Summary of Provision for Samarco Dam Failure (Detail) Details 91 false false R92.htm 996307 - Disclosure - Expenses and Other Income - Summary of Expenses and Other Income (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ExpensesAndOtherIncomeSummaryOfExpensesAndOtherIncomeDetail Expenses and Other Income - Summary of Expenses and Other Income (Detail) Details 92 false false R93.htm 996317 - Disclosure - Income Tax Expense - Summary of Income Tax Expense (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/IncomeTaxExpenseSummaryOfIncomeTaxExpenseDetail Income Tax Expense - Summary of Income Tax Expense (Detail) Details 93 false false R94.htm 996327 - Disclosure - Income Tax Expense - Summary of Factors Affecting Income Tax Expense (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/IncomeTaxExpenseSummaryOfFactorsAffectingIncomeTaxExpenseDetail Income Tax Expense - Summary of Factors Affecting Income Tax Expense (Detail) Details 94 false false R95.htm 996337 - Disclosure - Income Tax Expense - Summary of Factors Affecting Income Tax Expense (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/IncomeTaxExpenseSummaryOfFactorsAffectingIncomeTaxExpenseParentheticalDetail Income Tax Expense - Summary of Factors Affecting Income Tax Expense (Parenthetical) (Detail) Details 95 false false R96.htm 996347 - Disclosure - Income Tax Expense - Summary of Income Tax Recognised in Other Comprehensive Income (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/IncomeTaxExpenseSummaryOfIncomeTaxRecognisedInOtherComprehensiveIncomeDetail Income Tax Expense - Summary of Income Tax Recognised in Other Comprehensive Income (Detail) Details 96 false false R97.htm 996357 - Disclosure - Income Tax Expense - Summary of Income Tax Recognised in Other Comprehensive Income (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/IncomeTaxExpenseSummaryOfIncomeTaxRecognisedInOtherComprehensiveIncomeParentheticalDetail Income Tax Expense - Summary of Income Tax Recognised in Other Comprehensive Income (Parenthetical) (Detail) Details 97 false false R98.htm 996367 - Disclosure - Income Tax Expense - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/IncomeTaxExpenseAdditionalInformationDetail Income Tax Expense - Additional Information (Detail) Details 98 false false R99.htm 996377 - Disclosure - Earnings Per Share - Summary of Earnings Per Share (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EarningsPerShareSummaryOfEarningsPerShareDetail Earnings Per Share - Summary of Earnings Per Share (Detail) Details 99 false false R100.htm 996387 - Disclosure - Earnings Per Share - Summary of Reconciliation of Earnings Attributable to Ordinary Shareholders (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EarningsPerShareSummaryOfReconciliationOfEarningsAttributableToOrdinaryShareholdersDetail Earnings Per Share - Summary of Reconciliation of Earnings Attributable to Ordinary Shareholders (Detail) Details 100 false false R101.htm 996397 - Disclosure - Earnings Per Share - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EarningsPerShareAdditionalInformationDetail Earnings Per Share - Additional Information (Detail) Details 101 false false R102.htm 996407 - Disclosure - Trade and Other Receivables - Summary of Trade and Other Receivables (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/TradeAndOtherReceivablesSummaryOfTradeAndOtherReceivablesDetail Trade and Other Receivables - Summary of Trade and Other Receivables (Detail) Details 102 false false R103.htm 996417 - Disclosure - Trade and Other Receivables - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/TradeAndOtherReceivablesAdditionalInformationDetail Trade and Other Receivables - Additional Information (Detail) Details 103 false false R104.htm 996427 - Disclosure - Trade and Other Payables - Summary of Trade and Other Payables (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/TradeAndOtherPayablesSummaryOfTradeAndOtherPayablesDetail Trade and Other Payables - Summary of Trade and Other Payables (Detail) Details 104 false false R105.htm 996437 - Disclosure - Inventories - Summary of Inventories (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/InventoriesSummaryOfInventoriesDetail Inventories - Summary of Inventories (Detail) Details 105 false false R106.htm 996447 - Disclosure - Inventories - Summary of Inventories (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/InventoriesSummaryOfInventoriesParentheticalDetail Inventories - Summary of Inventories (Parenthetical) (Detail) Details 106 false false R107.htm 996457 - Disclosure - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/PropertyPlantAndEquipmentSummaryOfPropertyPlantAndEquipmentDetail Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) Details 107 false false R108.htm 996467 - Disclosure - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/PropertyPlantAndEquipmentSummaryOfPropertyPlantAndEquipmentParentheticalDetail Property, Plant and Equipment - Summary of Property, Plant and Equipment (Parenthetical) (Detail) Details 108 false false R109.htm 996477 - Disclosure - Property, Plant and Equipment - Summary of Principal Depreciation Methods and Rates Applied to Major Asset Categories (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/PropertyPlantAndEquipmentSummaryOfPrincipalDepreciationMethodsAndRatesAppliedToMajorAssetCategoriesDetail Property, Plant and Equipment - Summary of Principal Depreciation Methods and Rates Applied to Major Asset Categories (Detail) Details 109 false false R110.htm 996487 - Disclosure - Property, Plant and Equipment - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/PropertyPlantAndEquipmentAdditionalInformationDetail Property, Plant and Equipment - Additional Information (Detail) Details 110 false false R111.htm 996497 - Disclosure - Intangible Assets - Summary of Intangible Assets (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/IntangibleAssetsSummaryOfIntangibleAssetsDetail Intangible Assets - Summary of Intangible Assets (Detail) Details 111 false false R112.htm 996507 - Disclosure - Intangible Assets - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/IntangibleAssetsAdditionalInformationDetail Intangible Assets - Additional Information (Detail) Details 112 false false R113.htm 996517 - Disclosure - Impairment of Non-current Assets - Schedule of Impairment of Non-current Assets for Cash Generating Unit by Class of Assets and by Reportable Segment (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ImpairmentOfNonCurrentAssetsScheduleOfImpairmentOfNonCurrentAssetsForCashGeneratingUnitByClassOfAssetsAndByReportableSegmentDetail Impairment of Non-current Assets - Schedule of Impairment of Non-current Assets for Cash Generating Unit by Class of Assets and by Reportable Segment (Detail) Details 113 false false R114.htm 996527 - Disclosure - Impairment of Non-current Assets - Summary of Goodwill Allocated to Cash Generating Units (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ImpairmentOfNonCurrentAssetsSummaryOfGoodwillAllocatedToCashGeneratingUnitsDetail Impairment of Non-current Assets - Summary of Goodwill Allocated to Cash Generating Units (Detail) Details 114 false false R115.htm 996537 - Disclosure - Impairment of Non-current Assets - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ImpairmentOfNonCurrentAssetsAdditionalInformationDetail Impairment of Non-current Assets - Additional Information (Detail) Details 115 false false R116.htm 996547 - Disclosure - Deferred Tax Balances - Summary of Movement in Net Deferred Tax Position (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DeferredTaxBalancesSummaryOfMovementInNetDeferredTaxPositionDetail Deferred Tax Balances - Summary of Movement in Net Deferred Tax Position (Detail) Details 116 false false R117.htm 996557 - Disclosure - Deferred Tax Balances - Summary of Movement in Net Deferred Tax Position (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DeferredTaxBalancesSummaryOfMovementInNetDeferredTaxPositionParentheticalDetail Deferred Tax Balances - Summary of Movement in Net Deferred Tax Position (Parenthetical) (Detail) Details 117 false false R118.htm 996567 - Disclosure - Deferred Tax Balances - Summary of Composition of Net Deferred Tax Assets and Liabilities and Deferred Tax Expense Charged/(Credited) to Income Statement (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DeferredTaxBalancesSummaryOfCompositionOfNetDeferredTaxAssetsAndLiabilitiesAndDeferredTaxExpenseChargedCreditedToIncomeStatementDetail Deferred Tax Balances - Summary of Composition of Net Deferred Tax Assets and Liabilities and Deferred Tax Expense Charged/(Credited) to Income Statement (Detail) Details 118 false false R119.htm 996577 - Disclosure - Deferred Tax Balances - Summary of Composition of Unrecognised Deferred Tax Assets and Liabilities (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DeferredTaxBalancesSummaryOfCompositionOfUnrecognisedDeferredTaxAssetsAndLiabilitiesDetail Deferred Tax Balances - Summary of Composition of Unrecognised Deferred Tax Assets and Liabilities (Detail) Details 119 false false R120.htm 996587 - Disclosure - Deferred Tax Balances - Summary of Composition of Unrecognised Deferred Tax Assets and Liabilities (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DeferredTaxBalancesSummaryOfCompositionOfUnrecognisedDeferredTaxAssetsAndLiabilitiesParentheticalDetail Deferred Tax Balances - Summary of Composition of Unrecognised Deferred Tax Assets and Liabilities (Parenthetical) (Detail) Details 120 false false R121.htm 996597 - Disclosure - Closure and Rehabilitation Provisions - Summary of Closure and Rehabilitation Provisions (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ClosureAndRehabilitationProvisionsSummaryOfClosureAndRehabilitationProvisionsDetail Closure and Rehabilitation Provisions - Summary of Closure and Rehabilitation Provisions (Detail) Details 121 false false R122.htm 996607 - Disclosure - Closure and Rehabilitation Provisions - Summary of Detailed Information About Profile of Closure and Rehabilitation Cash Flows (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ClosureAndRehabilitationProvisionsSummaryOfDetailedInformationAboutProfileOfClosureAndRehabilitationCashFlowsDetail Closure and Rehabilitation Provisions - Summary of Detailed Information About Profile of Closure and Rehabilitation Cash Flows (Detail) Details 122 false false R123.htm 996617 - Disclosure - Closure and Rehabilitation Provisions - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ClosureAndRehabilitationProvisionsAdditionalInformationDetail Closure and Rehabilitation Provisions - Additional Information (Detail) Details 123 false false R124.htm 996637 - Disclosure - Climate change - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ClimateChangeAdditionalInformationDetail Climate change - Additional Information (Detail) Details 124 false false R125.htm 996647 - Disclosure - Share Capital - Summary of Share Capital (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ShareCapitalSummaryOfShareCapitalDetail Share Capital - Summary of Share Capital (Detail) Details 125 false false R126.htm 996657 - Disclosure - Share Capital - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ShareCapitalAdditionalInformationDetail Share Capital - Additional Information (Detail) Details 126 false false R127.htm 996667 - Disclosure - Other Equity - Summary of Reserves (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/OtherEquitySummaryOfReservesDetail Other Equity - Summary of Reserves (Detail) Details 127 false false R128.htm 996677 - Disclosure - Other Equity - Summary of Financial Information Relating to Subsidiaries with Non-controlling Interests (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/OtherEquitySummaryOfFinancialInformationRelatingToSubsidiariesWithNonControllingInterestsDetail Other Equity - Summary of Financial Information Relating to Subsidiaries with Non-controlling Interests (Detail) Details 128 false false R129.htm 996687 - Disclosure - Other Equity (Additional Information) (Details) Sheet http://www.bhp.com/20260630/taxonomy/role/DisclosureOtherEquityAdditionalInformationDetails Other Equity (Additional Information) (Details) Details 129 false false R130.htm 996697 - Disclosure - Dividends - Summary of Dividends Paid (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DividendsSummaryOfDividendsPaidDetail Dividends - Summary of Dividends Paid (Detail) Details 130 false false R131.htm 996707 - Disclosure - Dividends - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DividendsAdditionalInformationDetail Dividends - Additional Information (Detail) Details 131 false false R132.htm 996717 - Disclosure - Dividends - Summary of Franking Credits (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DividendsSummaryOfFrankingCreditsDetail Dividends - Summary of Franking Credits (Detail) Details 132 false false R133.htm 996727 - Disclosure - Dividends - Summary of Franking Credits (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DividendsSummaryOfFrankingCreditsParentheticalDetail Dividends - Summary of Franking Credits (Parenthetical) (Detail) Details 133 false false R134.htm 996737 - Disclosure - Provisions for Dividends and Other Liabilities - Summary of Provisions for Dividends and Other Liabilities (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ProvisionsForDividendsAndOtherLiabilitiesSummaryOfProvisionsForDividendsAndOtherLiabilitiesDetail Provisions for Dividends and Other Liabilities - Summary of Provisions for Dividends and Other Liabilities (Detail) Details 134 false false R135.htm 996747 - Disclosure - Net Debt - Summary of Net Debt Balance and Gearing Ratio (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/NetDebtSummaryOfNetDebtBalanceAndGearingRatioDetail Net Debt - Summary of Net Debt Balance and Gearing Ratio (Detail) Details 135 false false R136.htm 996757 - Disclosure - Net Debt - Summary of Cash and Cash Equivalents, Net of Overdrafts (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/NetDebtSummaryOfCashAndCashEquivalentsNetOfOverdraftsDetail Net Debt - Summary of Cash and Cash Equivalents, Net of Overdrafts (Detail) Details 136 false false R137.htm 996767 - Disclosure - Net Debt - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/NetDebtAdditionalInformationDetail Net Debt - Additional Information (Detail) Details 137 false false R138.htm 996777 - Disclosure - Net Debt - Summary of Interest Bearing Liabilities and Cash and Cash Equivalents Denominated by Currency (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/NetDebtSummaryOfInterestBearingLiabilitiesAndCashAndCashEquivalentsDenominatedByCurrencyDetail Net Debt - Summary of Interest Bearing Liabilities and Cash and Cash Equivalents Denominated by Currency (Detail) Details 138 false false R139.htm 996787 - Disclosure - Net Debt - Summary of Maturity Profile of Financial Liabilities Based on the Contractual Amounts (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/NetDebtSummaryOfMaturityProfileOfFinancialLiabilitiesBasedOnTheContractualAmountsDetail Net Debt - Summary of Maturity Profile of Financial Liabilities Based on the Contractual Amounts (Detail) Details 139 false false R140.htm 996797 - Disclosure - Net Debt - Summary of Maturity Profile of Financial Liabilities Based on the Contractual Amounts (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/NetDebtSummaryOfMaturityProfileOfFinancialLiabilitiesBasedOnTheContractualAmountsParentheticalDetail Net Debt - Summary of Maturity Profile of Financial Liabilities Based on the Contractual Amounts (Parenthetical) (Detail) Details 140 false false R141.htm 996807 - Disclosure - Leases - Summary of Movements in Lease Liabilities (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/LeasesSummaryOfMovementsInLeaseLiabilitiesDetail Leases - Summary of Movements in Lease Liabilities (Detail) Details 141 false false R142.htm 996817 - Disclosure - Leases - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/LeasesAdditionalInformationDetail Leases - Additional Information (Detail) Details 142 false false R143.htm 996827 - Disclosure - Leases - Summary of Movements in Right of Use Assets (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/LeasesSummaryOfMovementsInRightOfUseAssetsDetail Leases - Summary of Movements in Right of Use Assets (Detail) Details 143 false false R144.htm 996837 - Disclosure - Leases - Summary of Amounts Recorded in Income Statement and Cash Flow Statements (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/LeasesSummaryOfAmountsRecordedInIncomeStatementAndCashFlowStatementsDetail Leases - Summary of Amounts Recorded in Income Statement and Cash Flow Statements (Detail) Details 144 false false R145.htm 996847 - Disclosure - Leases - Summary of Amounts Recorded in Income Statement and Cash Flow Statements (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/LeasesSummaryOfAmountsRecordedInIncomeStatementAndCashFlowStatementsParentheticalDetail Leases - Summary of Amounts Recorded in Income Statement and Cash Flow Statements (Parenthetical) (Detail) Details 145 false false R146.htm 996857 - Disclosure - Net Finance Costs - Summary of Net Finance Costs (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/NetFinanceCostsSummaryOfNetFinanceCostsDetail Net Finance Costs - Summary of Net Finance Costs (Detail) Details 146 false false R147.htm 996867 - Disclosure - Net Finance Costs - Summary of Net Finance Costs (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/NetFinanceCostsSummaryOfNetFinanceCostsParentheticalDetail Net Finance Costs - Summary of Net Finance Costs (Parenthetical) (Detail) Details 147 false false R148.htm 996877 - Disclosure - Financial Risk Management - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagementAdditionalInformationDetail Financial Risk Management - Additional Information (Detail) Details 148 false false R149.htm 996887 - Disclosure - Financial Risk Management - Summary of Foreign Currency Risk Arising From Financial Assets and Liabilities, Which Are Denominated In Currencies Other Than The US Dollar (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfForeignCurrencyRiskArisingFromFinancialAssetsAndLiabilitiesWhichAreDenominatedInCurrenciesOtherThanTheUsDollarDetail Financial Risk Management - Summary of Foreign Currency Risk Arising From Financial Assets and Liabilities, Which Are Denominated In Currencies Other Than The US Dollar (Detail) Details 149 false false R150.htm 996897 - Disclosure - Financial Risk Management - Summary of Financial Assets and Liabilities by Class (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfFinancialAssetsAndLiabilitiesByClassDetail Financial Risk Management - Summary of Financial Assets and Liabilities by Class (Detail) Details 150 false false R151.htm 996907 - Disclosure - Financial Risk Management - Summary of Financial Assets and Liabilities by Class (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfFinancialAssetsAndLiabilitiesByClassParentheticalDetail Financial Risk Management - Summary of Financial Assets and Liabilities by Class (Parenthetical) (Detail) Details 151 false false R152.htm 996917 - Disclosure - Financial Risk Management - Summary of Carrying Amounts of Group's Notes and Debentures by Currency and Derivatives Which Hedge (Detail) Notes http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfCarryingAmountsOfGroupsNotesAndDebenturesByCurrencyAndDerivativesWhichHedgeDetail Financial Risk Management - Summary of Carrying Amounts of Group's Notes and Debentures by Currency and Derivatives Which Hedge (Detail) Details 152 false false R153.htm 996927 - Disclosure - Financial Risk Management - Summary of Carrying Amounts of Group's Notes and Debentures by Currency and Derivatives Which Hedge (Parenthetical) (Detail) Notes http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfCarryingAmountsOfGroupsNotesAndDebenturesByCurrencyAndDerivativesWhichHedgeParentheticalDetail Financial Risk Management - Summary of Carrying Amounts of Group's Notes and Debentures by Currency and Derivatives Which Hedge (Parenthetical) (Detail) Details 153 false false R154.htm 996937 - Disclosure - Financial Risk Management - Summary of Reconciliation of Components of Equity and Analysis of Movements in Reserves for all Hedges (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfReconciliationOfComponentsOfEquityAndAnalysisOfMovementsInReservesForAllHedgesDetail Financial Risk Management - Summary of Reconciliation of Components of Equity and Analysis of Movements in Reserves for all Hedges (Detail) Details 154 false false R155.htm 996947 - Disclosure - Financial Risk Management - Summary of Movement of Interest Bearing Liabilities and Related Derivatives (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfMovementOfInterestBearingLiabilitiesAndRelatedDerivativesDetail Financial Risk Management - Summary of Movement of Interest Bearing Liabilities and Related Derivatives (Detail) Details 155 false false R156.htm 996957 - Disclosure - Key Management Personnel - Summary of Key Management Personnel (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/KeyManagementPersonnelSummaryOfKeyManagementPersonnelDetail Key Management Personnel - Summary of Key Management Personnel (Detail) Details 156 false false R157.htm 996967 - Disclosure - Key Management Personnel - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/KeyManagementPersonnelAdditionalInformationDetail Key Management Personnel - Additional Information (Detail) Details 157 false false R158.htm 996977 - Disclosure - Employee Share Ownership Plans - Summary of Description of Plans (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeShareOwnershipPlansSummaryOfDescriptionOfPlansDetail Employee Share Ownership Plans - Summary of Description of Plans (Detail) Details 158 false false R159.htm 996987 - Disclosure - Employee Share Ownership Plans - Summary of Description of Plans (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeShareOwnershipPlansSummaryOfDescriptionOfPlansParentheticalDetail Employee Share Ownership Plans - Summary of Description of Plans (Parenthetical) (Detail) Details 159 false false R160.htm 996997 - Disclosure - Employee Share Ownership Plans - Summary of Employee Share Awards (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeShareOwnershipPlansSummaryOfEmployeeShareAwardsDetail Employee Share Ownership Plans - Summary of Employee Share Awards (Detail) Details 160 false false R161.htm 997017 - Disclosure - Employee Share Ownership Plans - Summary of Fair Value and Assumptions in the Calculation of Fair Value for Awards Issued (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeShareOwnershipPlansSummaryOfFairValueAndAssumptionsInTheCalculationOfFairValueForAwardsIssuedDetail Employee Share Ownership Plans - Summary of Fair Value and Assumptions in the Calculation of Fair Value for Awards Issued (Detail) Details 161 false false R162.htm 997027 - Disclosure - Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions - Summary of Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeBenefitsRestructuringAndPostRetirementEmployeeBenefitsProvisionsSummaryOfEmployeeBenefitsRestructuringAndPostRetirementEmployeeBenefitsProvisionsDetail Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions - Summary of Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions (Detail) Details 162 false false R163.htm 997037 - Disclosure - Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions - Summary of Reconciliation of Employee Benefits, Restructuring and Post-retirement Employee Benefits (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeBenefitsRestructuringAndPostRetirementEmployeeBenefitsProvisionsSummaryOfReconciliationOfEmployeeBenefitsRestructuringAndPostRetirementEmployeeBenefitsDetail Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions - Summary of Reconciliation of Employee Benefits, Restructuring and Post-retirement Employee Benefits (Detail) Details 163 false false R164.htm 997047 - Disclosure - Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions - Summary of Reconciliation of Employee Benefits, Restructuring and Post-retirement Employee Benefits (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeBenefitsRestructuringAndPostRetirementEmployeeBenefitsProvisionsSummaryOfReconciliationOfEmployeeBenefitsRestructuringAndPostRetirementEmployeeBenefitsParentheticalDetail Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions - Summary of Reconciliation of Employee Benefits, Restructuring and Post-retirement Employee Benefits (Parenthetical) (Detail) Details 164 false false R165.htm 997057 - Disclosure - Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/EmployeeBenefitsRestructuringAndPostRetirementEmployeeBenefitsProvisionsAdditionalInformationDetail Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions - Additional Information (Detail) Details 165 false false R166.htm 997067 - Disclosure - Subsidiaries - Summary of Significant Subsidiaries (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SubsidiariesSummaryOfSignificantSubsidiariesDetail Subsidiaries - Summary of Significant Subsidiaries (Detail) Details 166 false false R167.htm 997077 - Disclosure - Subsidiaries - Summary of Significant Subsidiaries (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SubsidiariesSummaryOfSignificantSubsidiariesParentheticalDetail Subsidiaries - Summary of Significant Subsidiaries (Parenthetical) (Detail) Details 167 false false R168.htm 997087 - Disclosure - Investments Accounted for Using the Equity Method - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/InvestmentsAccountedForUsingTheEquityMethodAdditionalInformationDetail Investments Accounted for Using the Equity Method - Additional Information (Detail) Details 168 false false R169.htm 997097 - Disclosure - Investments Accounted for Using the Equity Method - Summary of Ownership Interest in Equity Accounted Investments (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/InvestmentsAccountedForUsingTheEquityMethodSummaryOfOwnershipInterestInEquityAccountedInvestmentsDetail Investments Accounted for Using the Equity Method - Summary of Ownership Interest in Equity Accounted Investments (Detail) Details 169 false false R170.htm 997107 - Disclosure - Investments Accounted for Using the Equity Method - Summary of Movements of Investments Accounted for using the Equity Method (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/InvestmentsAccountedForUsingTheEquityMethodSummaryOfMovementsOfInvestmentsAccountedForUsingTheEquityMethodDetail Investments Accounted for Using the Equity Method - Summary of Movements of Investments Accounted for using the Equity Method (Detail) Details 170 false false R171.htm 997117 - Disclosure - Investments Accounted for Using the Equity Method - Summary of Movements of Investments Accounted for using the Equity Method (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/InvestmentsAccountedForUsingTheEquityMethodSummaryOfMovementsOfInvestmentsAccountedForUsingTheEquityMethodParentheticalDetail Investments Accounted for Using the Equity Method - Summary of Movements of Investments Accounted for using the Equity Method (Parenthetical) (Detail) Details 171 false false R172.htm 997127 - Disclosure - Investments Accounted for Using the Equity Method - Summary of Financial Information of Significant Equity Accounted Investments (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/InvestmentsAccountedForUsingTheEquityMethodSummaryOfFinancialInformationOfSignificantEquityAccountedInvestmentsDetail Investments Accounted for Using the Equity Method - Summary of Financial Information of Significant Equity Accounted Investments (Detail) Details 172 false false R173.htm 997137 - Disclosure - Investments Accounted for Using the Equity Method - Summary of Financial Information of Significant Equity Accounted Investments (Parenthetical) (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/InvestmentsAccountedForUsingTheEquityMethodSummaryOfFinancialInformationOfSignificantEquityAccountedInvestmentsParentheticalDetail Investments Accounted for Using the Equity Method - Summary of Financial Information of Significant Equity Accounted Investments (Parenthetical) (Detail) Details 173 false false R174.htm 997147 - Disclosure - Interests in Joint Operations - Summary of Significant Interests in Joint Operations (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/InterestsInJointOperationsSummaryOfSignificantInterestsInJointOperationsDetail Interests in Joint Operations - Summary of Significant Interests in Joint Operations (Detail) Details 174 false false R175.htm 997157 - Disclosure - Interests in Joint Operations - Summary of Assets Held in Joint Operations (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/InterestsInJointOperationsSummaryOfAssetsHeldInJointOperationsDetail Interests in Joint Operations - Summary of Assets Held in Joint Operations (Detail) Details 175 false false R176.htm 997167 - Disclosure - Related Party Transactions - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/RelatedPartyTransactionsAdditionalInformationDetail Related Party Transactions - Additional Information (Detail) Details 176 false false R177.htm 997177 - Disclosure - Related Party Transactions - Summary of Transactions with Related Parties (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/RelatedPartyTransactionsSummaryOfTransactionsWithRelatedPartiesDetail Related Party Transactions - Summary of Transactions with Related Parties (Detail) Details 177 false false R178.htm 997187 - Disclosure - Related Party Transactions - Summary of Outstanding Balances with Related Parties (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/RelatedPartyTransactionsSummaryOfOutstandingBalancesWithRelatedPartiesDetail Related Party Transactions - Summary of Outstanding Balances with Related Parties (Detail) Details 178 false false R179.htm 997197 - Disclosure - Contingent Liabilities - Summary of Contingent Liabilities (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/ContingentLiabilitiesSummaryOfContingentLiabilitiesDetail Contingent Liabilities - Summary of Contingent Liabilities (Detail) Details 179 false false R180.htm 997207 - Disclosure - Auditor's Remuneration - Summary of Auditors Remuneration (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DisclosureAuditorsRemunerationSummaryOfAuditorsRemunerationDetail Auditor's Remuneration - Summary of Auditors Remuneration (Detail) Details 180 false false R181.htm 997217 - Disclosure - Auditor's Remuneration - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/DisclosureAuditorsRemunerationAdditionalInformationDetail Auditor's Remuneration - Additional Information (Detail) Details 181 false false R182.htm 997237 - Disclosure - Subsequent Events - Additional Information (Detail) Sheet http://www.bhp.com/20260630/taxonomy/role/SubsequentEventsAdditionalInformationDetail Subsequent Events - Additional Information (Detail) Details 182 false false All Reports Book All Reports bhp-20260630.htm bhp-ex15_1.htm bhp-20260630.xsd img233881179_0.jpg img233881179_1.jpg img233881179_10.jpg img233881179_11.jpg img233881179_12.jpg img233881179_13.jpg img233881179_14.jpg img233881179_15.jpg img233881179_16.jpg img233881179_17.jpg img233881179_18.jpg img233881179_19.jpg img233881179_2.jpg img233881179_20.jpg img233881179_21.jpg img233881179_22.jpg img233881179_23.jpg img233881179_24.jpg img233881179_25.jpg img233881179_26.jpg img233881179_27.jpg img233881179_28.jpg img233881179_29.jpg img233881179_3.jpg img233881179_30.jpg img233881179_31.jpg img233881179_32.jpg img233881179_33.jpg img233881179_34.jpg img233881179_35.jpg img233881179_36.jpg img233881179_37.jpg img233881179_38.jpg img233881179_39.jpg img233881179_4.jpg img233881179_40.jpg img233881179_41.jpg img233881179_42.jpg img233881179_43.jpg img233881179_44.jpg img233881179_45.jpg img233881179_46.jpg img233881179_47.jpg img233881179_48.jpg img233881179_49.jpg img233881179_5.jpg img233881179_50.jpg img233881179_51.jpg img233881179_52.jpg img233881179_53.jpg img233881179_54.jpg img233881179_55.jpg img233881179_56.jpg img233881179_57.jpg img233881179_58.jpg img233881179_59.jpg img233881179_6.jpg img233881179_60.jpg img233881179_61.jpg img233881179_62.jpg img233881179_7.jpg img233881179_8.jpg img233881179_9.jpg http://xbrl.sec.gov/cyd/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full false false